Hi all,
This series adds 1000BaseX and 2500BaseX support to the Marvell PPv2
driver. In order to use it, the 2.5 SGMII mode is added in the Marvell
common PHY driver (cp110-comphy).
This was tested on a mcbin.
All patches should probably go through net-next as patch 4/4 depends on
patch 1/4 to build and work.
Please note the two mvpp2 patches do not conflict with the ACPI series
v2 Marcin sent a few days ago, and the two series can be processed in
parallel. (Marcin is aware of me sending this series).
Thanks!
Antoine
Since v2:
- Added a comment before mvpp22_comphy_init() about the different PHY modes
used and why they differ between the PPv2 driver and the COMPHY one.
Since v1:
- s/PHY_MODE_SGMII_2_5G/PHY_MODE_2500SGMII/
- Fixed a build error in 'net: mvpp2: 1000baseX support' (which was solved in
the 2500baseX support one, but the bisection was broken).
- Removed the dt patches, as the fourth network interface on the mcbin also
needs PHYLINK support in the PPv2 driver to be correctly supported.
Antoine Tenart (4):
phy: add 2.5G SGMII mode to the phy_mode enum
phy: cp110-comphy: 2.5G SGMII mode
net: mvpp2: 1000baseX support
net: mvpp2: 2500baseX support
drivers/net/ethernet/marvell/mvpp2.c | 77 ++++++++++++++++++++++++----
drivers/phy/marvell/phy-mvebu-cp110-comphy.c | 17 ++++--
include/linux/phy/phy.h | 1 +
3 files changed, 82 insertions(+), 13 deletions(-)
--
2.14.3
This patch adds one more generic PHY mode to the phy_mode enum, to allow
configuring generic PHYs to the 2.5G SGMII mode by using the set_mode
callback.
Signed-off-by: Antoine Tenart <[email protected]>
---
include/linux/phy/phy.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/include/linux/phy/phy.h b/include/linux/phy/phy.h
index 4f8423a948d5..5a80e9de3686 100644
--- a/include/linux/phy/phy.h
+++ b/include/linux/phy/phy.h
@@ -28,6 +28,7 @@ enum phy_mode {
PHY_MODE_USB_DEVICE,
PHY_MODE_USB_OTG,
PHY_MODE_SGMII,
+ PHY_MODE_2500SGMII,
PHY_MODE_10GKR,
PHY_MODE_UFS_HS_A,
PHY_MODE_UFS_HS_B,
--
2.14.3
This patch adds the 2500Base-X PHY mode support in the Marvell PPv2
driver. 2500Base-X is quite close to 1000Base-X and SGMII modes and uses
nearly the same code path.
Signed-off-by: Antoine Tenart <[email protected]>
---
drivers/net/ethernet/marvell/mvpp2.c | 50 +++++++++++++++++++++++++++++-------
1 file changed, 41 insertions(+), 9 deletions(-)
diff --git a/drivers/net/ethernet/marvell/mvpp2.c b/drivers/net/ethernet/marvell/mvpp2.c
index 257a6b99b4ca..290f891421d1 100644
--- a/drivers/net/ethernet/marvell/mvpp2.c
+++ b/drivers/net/ethernet/marvell/mvpp2.c
@@ -4502,6 +4502,7 @@ static int mvpp22_gop_init(struct mvpp2_port *port)
break;
case PHY_INTERFACE_MODE_SGMII:
case PHY_INTERFACE_MODE_1000BASEX:
+ case PHY_INTERFACE_MODE_2500BASEX:
mvpp22_gop_init_sgmii(port);
break;
case PHY_INTERFACE_MODE_10GKR:
@@ -4540,7 +4541,8 @@ static void mvpp22_gop_unmask_irq(struct mvpp2_port *port)
if (phy_interface_mode_is_rgmii(port->phy_interface) ||
port->phy_interface == PHY_INTERFACE_MODE_SGMII ||
- port->phy_interface == PHY_INTERFACE_MODE_1000BASEX) {
+ port->phy_interface == PHY_INTERFACE_MODE_1000BASEX ||
+ port->phy_interface == PHY_INTERFACE_MODE_2500BASEX) {
/* Enable the GMAC link status irq for this port */
val = readl(port->base + MVPP22_GMAC_INT_SUM_MASK);
val |= MVPP22_GMAC_INT_SUM_MASK_LINK_STAT;
@@ -4571,7 +4573,8 @@ static void mvpp22_gop_mask_irq(struct mvpp2_port *port)
if (phy_interface_mode_is_rgmii(port->phy_interface) ||
port->phy_interface == PHY_INTERFACE_MODE_SGMII ||
- port->phy_interface == PHY_INTERFACE_MODE_1000BASEX) {
+ port->phy_interface == PHY_INTERFACE_MODE_1000BASEX ||
+ port->phy_interface == PHY_INTERFACE_MODE_2500BASEX) {
val = readl(port->base + MVPP22_GMAC_INT_SUM_MASK);
val &= ~MVPP22_GMAC_INT_SUM_MASK_LINK_STAT;
writel(val, port->base + MVPP22_GMAC_INT_SUM_MASK);
@@ -4584,7 +4587,8 @@ static void mvpp22_gop_setup_irq(struct mvpp2_port *port)
if (phy_interface_mode_is_rgmii(port->phy_interface) ||
port->phy_interface == PHY_INTERFACE_MODE_SGMII ||
- port->phy_interface == PHY_INTERFACE_MODE_1000BASEX) {
+ port->phy_interface == PHY_INTERFACE_MODE_1000BASEX ||
+ port->phy_interface == PHY_INTERFACE_MODE_2500BASEX) {
val = readl(port->base + MVPP22_GMAC_INT_MASK);
val |= MVPP22_GMAC_INT_MASK_LINK_STAT;
writel(val, port->base + MVPP22_GMAC_INT_MASK);
@@ -4599,6 +4603,16 @@ static void mvpp22_gop_setup_irq(struct mvpp2_port *port)
mvpp22_gop_unmask_irq(port);
}
+/* Sets the PHY mode of the COMPHY (which configures the serdes lanes).
+ *
+ * The PHY mode used by the PPv2 driver comes from the network subsystem, while
+ * the one given to the COMPHY comes from the generic PHY subsystem. Hence they
+ * differ.
+ *
+ * The COMPHY configures the serdes lanes regardless of the actual use of the
+ * lanes by the physical layer. This is why configurations like
+ * "PPv2 (2500BaseX) - COMPHY (2500SGMII)" are valid.
+ */
static int mvpp22_comphy_init(struct mvpp2_port *port)
{
enum phy_mode mode;
@@ -4612,6 +4626,9 @@ static int mvpp22_comphy_init(struct mvpp2_port *port)
case PHY_INTERFACE_MODE_1000BASEX:
mode = PHY_MODE_SGMII;
break;
+ case PHY_INTERFACE_MODE_2500BASEX:
+ mode = PHY_MODE_2500SGMII;
+ break;
case PHY_INTERFACE_MODE_10GKR:
mode = PHY_MODE_10GKR;
break;
@@ -4631,7 +4648,8 @@ static void mvpp2_port_mii_gmac_configure_mode(struct mvpp2_port *port)
u32 val;
if (port->phy_interface == PHY_INTERFACE_MODE_SGMII ||
- port->phy_interface == PHY_INTERFACE_MODE_1000BASEX) {
+ port->phy_interface == PHY_INTERFACE_MODE_1000BASEX ||
+ port->phy_interface == PHY_INTERFACE_MODE_2500BASEX) {
val = readl(port->base + MVPP22_GMAC_CTRL_4_REG);
val |= MVPP22_CTRL4_SYNC_BYPASS_DIS | MVPP22_CTRL4_DP_CLK_SEL |
MVPP22_CTRL4_QSGMII_BYPASS_ACTIVE;
@@ -4647,7 +4665,8 @@ static void mvpp2_port_mii_gmac_configure_mode(struct mvpp2_port *port)
}
val = readl(port->base + MVPP2_GMAC_CTRL_0_REG);
- if (port->phy_interface == PHY_INTERFACE_MODE_1000BASEX)
+ if (port->phy_interface == PHY_INTERFACE_MODE_1000BASEX ||
+ port->phy_interface == PHY_INTERFACE_MODE_2500BASEX)
val |= MVPP2_GMAC_PORT_TYPE_MASK;
else
val &= ~MVPP2_GMAC_PORT_TYPE_MASK;
@@ -4660,6 +4679,11 @@ static void mvpp2_port_mii_gmac_configure_mode(struct mvpp2_port *port)
if (port->phy_interface == PHY_INTERFACE_MODE_SGMII)
val |= MVPP2_GMAC_IN_BAND_AUTONEG;
+ /* Clear all fields we may want to explicitly set below */
+ val &= ~(MVPP2_GMAC_CONFIG_FULL_DUPLEX | MVPP2_GMAC_CONFIG_GMII_SPEED |
+ MVPP2_GMAC_CONFIG_MII_SPEED | MVPP2_GMAC_AN_SPEED_EN |
+ MVPP2_GMAC_AN_DUPLEX_EN);
+
if (port->phy_interface == PHY_INTERFACE_MODE_1000BASEX)
/* 1000BaseX port cannot negotiate speed nor can it
* negotiate duplex: they are always operating with a
@@ -4668,6 +4692,10 @@ static void mvpp2_port_mii_gmac_configure_mode(struct mvpp2_port *port)
*/
val |= MVPP2_GMAC_CONFIG_GMII_SPEED |
MVPP2_GMAC_CONFIG_FULL_DUPLEX;
+ else if (port->phy_interface == PHY_INTERFACE_MODE_2500BASEX)
+ val |= MVPP2_GMAC_CONFIG_GMII_SPEED |
+ MVPP2_GMAC_CONFIG_MII_SPEED |
+ MVPP2_GMAC_CONFIG_FULL_DUPLEX;
else
val |= MVPP2_GMAC_AN_SPEED_EN |
MVPP2_GMAC_AN_DUPLEX_EN;
@@ -4693,7 +4721,8 @@ static void mvpp2_port_mii_gmac_configure(struct mvpp2_port *port)
/* Configure the PCS and in-band AN */
val = readl(port->base + MVPP2_GMAC_CTRL_2_REG);
if (port->phy_interface == PHY_INTERFACE_MODE_SGMII ||
- port->phy_interface == PHY_INTERFACE_MODE_1000BASEX) {
+ port->phy_interface == PHY_INTERFACE_MODE_1000BASEX ||
+ port->phy_interface == PHY_INTERFACE_MODE_2500BASEX) {
val |= MVPP2_GMAC_INBAND_AN_MASK | MVPP2_GMAC_PCS_ENABLE_MASK;
} else if (phy_interface_mode_is_rgmii(port->phy_interface)) {
val &= ~MVPP2_GMAC_PCS_ENABLE_MASK;
@@ -4756,7 +4785,8 @@ static void mvpp2_port_mii_set(struct mvpp2_port *port)
if (phy_interface_mode_is_rgmii(port->phy_interface) ||
port->phy_interface == PHY_INTERFACE_MODE_SGMII ||
- port->phy_interface == PHY_INTERFACE_MODE_1000BASEX)
+ port->phy_interface == PHY_INTERFACE_MODE_1000BASEX ||
+ port->phy_interface == PHY_INTERFACE_MODE_2500BASEX)
mvpp2_port_mii_gmac_configure(port);
else if (port->phy_interface == PHY_INTERFACE_MODE_10GKR)
mvpp2_port_mii_xlg_configure(port);
@@ -4834,7 +4864,8 @@ static void mvpp2_port_loopback_set(struct mvpp2_port *port)
val &= ~MVPP2_GMAC_GMII_LB_EN_MASK;
if (port->phy_interface == PHY_INTERFACE_MODE_SGMII ||
- port->phy_interface == PHY_INTERFACE_MODE_1000BASEX)
+ port->phy_interface == PHY_INTERFACE_MODE_1000BASEX ||
+ port->phy_interface == PHY_INTERFACE_MODE_2500BASEX)
val |= MVPP2_GMAC_PCS_LB_EN_MASK;
else
val &= ~MVPP2_GMAC_PCS_LB_EN_MASK;
@@ -6048,7 +6079,8 @@ static irqreturn_t mvpp2_link_status_isr(int irq, void *dev_id)
}
} else if (phy_interface_mode_is_rgmii(port->phy_interface) ||
port->phy_interface == PHY_INTERFACE_MODE_SGMII ||
- port->phy_interface == PHY_INTERFACE_MODE_1000BASEX) {
+ port->phy_interface == PHY_INTERFACE_MODE_1000BASEX ||
+ port->phy_interface == PHY_INTERFACE_MODE_2500BASEX) {
val = readl(port->base + MVPP22_GMAC_INT_STAT);
if (val & MVPP22_GMAC_INT_STAT_LINK) {
event = true;
--
2.14.3
This patch allow the CP100 comphy to configure some lanes in the
2.5G SGMII mode. This mode is quite close to SGMII and uses nearly the
same code path.
Signed-off-by: Antoine Tenart <[email protected]>
---
drivers/phy/marvell/phy-mvebu-cp110-comphy.c | 17 ++++++++++++++---
1 file changed, 14 insertions(+), 3 deletions(-)
diff --git a/drivers/phy/marvell/phy-mvebu-cp110-comphy.c b/drivers/phy/marvell/phy-mvebu-cp110-comphy.c
index a0d522154cdf..4ef429250d7b 100644
--- a/drivers/phy/marvell/phy-mvebu-cp110-comphy.c
+++ b/drivers/phy/marvell/phy-mvebu-cp110-comphy.c
@@ -135,19 +135,25 @@ struct mvebu_comhy_conf {
static const struct mvebu_comhy_conf mvebu_comphy_cp110_modes[] = {
/* lane 0 */
MVEBU_COMPHY_CONF(0, 1, PHY_MODE_SGMII, 0x1),
+ MVEBU_COMPHY_CONF(0, 1, PHY_MODE_2500SGMII, 0x1),
/* lane 1 */
MVEBU_COMPHY_CONF(1, 2, PHY_MODE_SGMII, 0x1),
+ MVEBU_COMPHY_CONF(1, 2, PHY_MODE_2500SGMII, 0x1),
/* lane 2 */
MVEBU_COMPHY_CONF(2, 0, PHY_MODE_SGMII, 0x1),
+ MVEBU_COMPHY_CONF(2, 0, PHY_MODE_2500SGMII, 0x1),
MVEBU_COMPHY_CONF(2, 0, PHY_MODE_10GKR, 0x1),
/* lane 3 */
MVEBU_COMPHY_CONF(3, 1, PHY_MODE_SGMII, 0x2),
+ MVEBU_COMPHY_CONF(3, 1, PHY_MODE_2500SGMII, 0x2),
/* lane 4 */
MVEBU_COMPHY_CONF(4, 0, PHY_MODE_SGMII, 0x2),
+ MVEBU_COMPHY_CONF(4, 0, PHY_MODE_2500SGMII, 0x2),
MVEBU_COMPHY_CONF(4, 0, PHY_MODE_10GKR, 0x2),
MVEBU_COMPHY_CONF(4, 1, PHY_MODE_SGMII, 0x1),
/* lane 5 */
MVEBU_COMPHY_CONF(5, 2, PHY_MODE_SGMII, 0x1),
+ MVEBU_COMPHY_CONF(5, 2, PHY_MODE_2500SGMII, 0x1),
};
struct mvebu_comphy_priv {
@@ -206,6 +212,10 @@ static void mvebu_comphy_ethernet_init_reset(struct mvebu_comphy_lane *lane,
if (mode == PHY_MODE_10GKR)
val |= MVEBU_COMPHY_SERDES_CFG0_GEN_RX(0xe) |
MVEBU_COMPHY_SERDES_CFG0_GEN_TX(0xe);
+ else if (mode == PHY_MODE_2500SGMII)
+ val |= MVEBU_COMPHY_SERDES_CFG0_GEN_RX(0x8) |
+ MVEBU_COMPHY_SERDES_CFG0_GEN_TX(0x8) |
+ MVEBU_COMPHY_SERDES_CFG0_HALF_BUS;
else if (mode == PHY_MODE_SGMII)
val |= MVEBU_COMPHY_SERDES_CFG0_GEN_RX(0x6) |
MVEBU_COMPHY_SERDES_CFG0_GEN_TX(0x6) |
@@ -296,13 +306,13 @@ static int mvebu_comphy_init_plls(struct mvebu_comphy_lane *lane,
return 0;
}
-static int mvebu_comphy_set_mode_sgmii(struct phy *phy)
+static int mvebu_comphy_set_mode_sgmii(struct phy *phy, enum phy_mode mode)
{
struct mvebu_comphy_lane *lane = phy_get_drvdata(phy);
struct mvebu_comphy_priv *priv = lane->priv;
u32 val;
- mvebu_comphy_ethernet_init_reset(lane, PHY_MODE_SGMII);
+ mvebu_comphy_ethernet_init_reset(lane, mode);
val = readl(priv->base + MVEBU_COMPHY_RX_CTRL1(lane->id));
val &= ~MVEBU_COMPHY_RX_CTRL1_CLK8T_EN;
@@ -487,7 +497,8 @@ static int mvebu_comphy_power_on(struct phy *phy)
switch (lane->mode) {
case PHY_MODE_SGMII:
- ret = mvebu_comphy_set_mode_sgmii(phy);
+ case PHY_MODE_2500SGMII:
+ ret = mvebu_comphy_set_mode_sgmii(phy, lane->mode);
break;
case PHY_MODE_10GKR:
ret = mvebu_comphy_set_mode_10gkr(phy);
--
2.14.3
This patch adds the 1000Base-X PHY mode support in the Marvell PPv2
driver. 1000Base-X is quite close the SGMII and uses nearly the same
code path.
Signed-off-by: Antoine Tenart <[email protected]>
---
drivers/net/ethernet/marvell/mvpp2.c | 45 ++++++++++++++++++++++++++++--------
1 file changed, 35 insertions(+), 10 deletions(-)
diff --git a/drivers/net/ethernet/marvell/mvpp2.c b/drivers/net/ethernet/marvell/mvpp2.c
index a19760736b71..257a6b99b4ca 100644
--- a/drivers/net/ethernet/marvell/mvpp2.c
+++ b/drivers/net/ethernet/marvell/mvpp2.c
@@ -4501,6 +4501,7 @@ static int mvpp22_gop_init(struct mvpp2_port *port)
mvpp22_gop_init_rgmii(port);
break;
case PHY_INTERFACE_MODE_SGMII:
+ case PHY_INTERFACE_MODE_1000BASEX:
mvpp22_gop_init_sgmii(port);
break;
case PHY_INTERFACE_MODE_10GKR:
@@ -4538,7 +4539,8 @@ static void mvpp22_gop_unmask_irq(struct mvpp2_port *port)
u32 val;
if (phy_interface_mode_is_rgmii(port->phy_interface) ||
- port->phy_interface == PHY_INTERFACE_MODE_SGMII) {
+ port->phy_interface == PHY_INTERFACE_MODE_SGMII ||
+ port->phy_interface == PHY_INTERFACE_MODE_1000BASEX) {
/* Enable the GMAC link status irq for this port */
val = readl(port->base + MVPP22_GMAC_INT_SUM_MASK);
val |= MVPP22_GMAC_INT_SUM_MASK_LINK_STAT;
@@ -4568,7 +4570,8 @@ static void mvpp22_gop_mask_irq(struct mvpp2_port *port)
}
if (phy_interface_mode_is_rgmii(port->phy_interface) ||
- port->phy_interface == PHY_INTERFACE_MODE_SGMII) {
+ port->phy_interface == PHY_INTERFACE_MODE_SGMII ||
+ port->phy_interface == PHY_INTERFACE_MODE_1000BASEX) {
val = readl(port->base + MVPP22_GMAC_INT_SUM_MASK);
val &= ~MVPP22_GMAC_INT_SUM_MASK_LINK_STAT;
writel(val, port->base + MVPP22_GMAC_INT_SUM_MASK);
@@ -4580,7 +4583,8 @@ static void mvpp22_gop_setup_irq(struct mvpp2_port *port)
u32 val;
if (phy_interface_mode_is_rgmii(port->phy_interface) ||
- port->phy_interface == PHY_INTERFACE_MODE_SGMII) {
+ port->phy_interface == PHY_INTERFACE_MODE_SGMII ||
+ port->phy_interface == PHY_INTERFACE_MODE_1000BASEX) {
val = readl(port->base + MVPP22_GMAC_INT_MASK);
val |= MVPP22_GMAC_INT_MASK_LINK_STAT;
writel(val, port->base + MVPP22_GMAC_INT_MASK);
@@ -4605,6 +4609,7 @@ static int mvpp22_comphy_init(struct mvpp2_port *port)
switch (port->phy_interface) {
case PHY_INTERFACE_MODE_SGMII:
+ case PHY_INTERFACE_MODE_1000BASEX:
mode = PHY_MODE_SGMII;
break;
case PHY_INTERFACE_MODE_10GKR:
@@ -4625,7 +4630,8 @@ static void mvpp2_port_mii_gmac_configure_mode(struct mvpp2_port *port)
{
u32 val;
- if (port->phy_interface == PHY_INTERFACE_MODE_SGMII) {
+ if (port->phy_interface == PHY_INTERFACE_MODE_SGMII ||
+ port->phy_interface == PHY_INTERFACE_MODE_1000BASEX) {
val = readl(port->base + MVPP22_GMAC_CTRL_4_REG);
val |= MVPP22_CTRL4_SYNC_BYPASS_DIS | MVPP22_CTRL4_DP_CLK_SEL |
MVPP22_CTRL4_QSGMII_BYPASS_ACTIVE;
@@ -4640,9 +4646,11 @@ static void mvpp2_port_mii_gmac_configure_mode(struct mvpp2_port *port)
writel(val, port->base + MVPP22_GMAC_CTRL_4_REG);
}
- /* The port is connected to a copper PHY */
val = readl(port->base + MVPP2_GMAC_CTRL_0_REG);
- val &= ~MVPP2_GMAC_PORT_TYPE_MASK;
+ if (port->phy_interface == PHY_INTERFACE_MODE_1000BASEX)
+ val |= MVPP2_GMAC_PORT_TYPE_MASK;
+ else
+ val &= ~MVPP2_GMAC_PORT_TYPE_MASK;
writel(val, port->base + MVPP2_GMAC_CTRL_0_REG);
val = readl(port->base + MVPP2_GMAC_AUTONEG_CONFIG);
@@ -4651,6 +4659,19 @@ static void mvpp2_port_mii_gmac_configure_mode(struct mvpp2_port *port)
MVPP2_GMAC_AN_DUPLEX_EN;
if (port->phy_interface == PHY_INTERFACE_MODE_SGMII)
val |= MVPP2_GMAC_IN_BAND_AUTONEG;
+
+ if (port->phy_interface == PHY_INTERFACE_MODE_1000BASEX)
+ /* 1000BaseX port cannot negotiate speed nor can it
+ * negotiate duplex: they are always operating with a
+ * fixed speed of 1000Mbps in full duplex, so force
+ * 1000 speed and full duplex here.
+ */
+ val |= MVPP2_GMAC_CONFIG_GMII_SPEED |
+ MVPP2_GMAC_CONFIG_FULL_DUPLEX;
+ else
+ val |= MVPP2_GMAC_AN_SPEED_EN |
+ MVPP2_GMAC_AN_DUPLEX_EN;
+
writel(val, port->base + MVPP2_GMAC_AUTONEG_CONFIG);
}
@@ -4671,7 +4692,8 @@ static void mvpp2_port_mii_gmac_configure(struct mvpp2_port *port)
/* Configure the PCS and in-band AN */
val = readl(port->base + MVPP2_GMAC_CTRL_2_REG);
- if (port->phy_interface == PHY_INTERFACE_MODE_SGMII) {
+ if (port->phy_interface == PHY_INTERFACE_MODE_SGMII ||
+ port->phy_interface == PHY_INTERFACE_MODE_1000BASEX) {
val |= MVPP2_GMAC_INBAND_AN_MASK | MVPP2_GMAC_PCS_ENABLE_MASK;
} else if (phy_interface_mode_is_rgmii(port->phy_interface)) {
val &= ~MVPP2_GMAC_PCS_ENABLE_MASK;
@@ -4733,7 +4755,8 @@ static void mvpp2_port_mii_set(struct mvpp2_port *port)
mvpp22_port_mii_set(port);
if (phy_interface_mode_is_rgmii(port->phy_interface) ||
- port->phy_interface == PHY_INTERFACE_MODE_SGMII)
+ port->phy_interface == PHY_INTERFACE_MODE_SGMII ||
+ port->phy_interface == PHY_INTERFACE_MODE_1000BASEX)
mvpp2_port_mii_gmac_configure(port);
else if (port->phy_interface == PHY_INTERFACE_MODE_10GKR)
mvpp2_port_mii_xlg_configure(port);
@@ -4810,7 +4833,8 @@ static void mvpp2_port_loopback_set(struct mvpp2_port *port)
else
val &= ~MVPP2_GMAC_GMII_LB_EN_MASK;
- if (port->phy_interface == PHY_INTERFACE_MODE_SGMII)
+ if (port->phy_interface == PHY_INTERFACE_MODE_SGMII ||
+ port->phy_interface == PHY_INTERFACE_MODE_1000BASEX)
val |= MVPP2_GMAC_PCS_LB_EN_MASK;
else
val &= ~MVPP2_GMAC_PCS_LB_EN_MASK;
@@ -6023,7 +6047,8 @@ static irqreturn_t mvpp2_link_status_isr(int irq, void *dev_id)
link = true;
}
} else if (phy_interface_mode_is_rgmii(port->phy_interface) ||
- port->phy_interface == PHY_INTERFACE_MODE_SGMII) {
+ port->phy_interface == PHY_INTERFACE_MODE_SGMII ||
+ port->phy_interface == PHY_INTERFACE_MODE_1000BASEX) {
val = readl(port->base + MVPP22_GMAC_INT_STAT);
if (val & MVPP22_GMAC_INT_STAT_LINK) {
event = true;
--
2.14.3
On Tue, Jan 09, 2018 at 09:59:45AM +0100, Antoine Tenart wrote:
> This patch adds the 2500Base-X PHY mode support in the Marvell PPv2
> driver. 2500Base-X is quite close to 1000Base-X and SGMII modes and uses
> nearly the same code path.
>
> Signed-off-by: Antoine Tenart <[email protected]>
Thanks for adding the comment.
Reviewed-by: Andrew Lunn <[email protected]>
Andrew
On Tue, Jan 09, 2018 at 09:59:45AM +0100, Antoine Tenart wrote:
> This patch adds the 2500Base-X PHY mode support in the Marvell PPv2
> driver. 2500Base-X is quite close to 1000Base-X and SGMII modes and uses
> nearly the same code path.
For 2500Base-X, do you report a speed of 2500Mbps through ethtool, or
are you reporting 1000Mbps? I don't see any code in this patch that
deals with that.
--
RMK's Patch system: http://www.armlinux.org.uk/developer/patches/
FTTC broadband for 0.8mile line in suburbia: sync at 8.8Mbps down 630kbps up
According to speedtest.net: 8.21Mbps down 510kbps up
On Tue, Jan 09, 2018 at 09:59:45AM +0100, Antoine Tenart wrote:
> This patch adds the 2500Base-X PHY mode support in the Marvell PPv2
> driver. 2500Base-X is quite close to 1000Base-X and SGMII modes and uses
> nearly the same code path.
Sorry, also...
> @@ -4668,6 +4692,10 @@ static void mvpp2_port_mii_gmac_configure_mode(struct mvpp2_port *port)
> */
> val |= MVPP2_GMAC_CONFIG_GMII_SPEED |
> MVPP2_GMAC_CONFIG_FULL_DUPLEX;
> + else if (port->phy_interface == PHY_INTERFACE_MODE_2500BASEX)
> + val |= MVPP2_GMAC_CONFIG_GMII_SPEED |
> + MVPP2_GMAC_CONFIG_MII_SPEED |
> + MVPP2_GMAC_CONFIG_FULL_DUPLEX;
I think you'll find you don't need to set MII_SPEED here, since
MII_SPEED selects between 10 and 100, GMII_SPEED always takes
precidence selecting 1000, and 2500 is done by the comphy
increasing the clocks by 2.5x.
--
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Hi Russell,
On Tue, Jan 09, 2018 at 02:42:38PM +0000, Russell King - ARM Linux wrote:
> On Tue, Jan 09, 2018 at 09:59:45AM +0100, Antoine Tenart wrote:
> > This patch adds the 2500Base-X PHY mode support in the Marvell PPv2
> > driver. 2500Base-X is quite close to 1000Base-X and SGMII modes and uses
> > nearly the same code path.
>
> For 2500Base-X, do you report a speed of 2500Mbps through ethtool, or
> are you reporting 1000Mbps? I don't see any code in this patch that
> deals with that.
The mvpp2 driver uses phy_ethtool_get_link_ksettings() to report the
link speed to Ethtool. So it's reporting the speed set by the PHY
driver.
So it'll be something to ensure when adding PHYs supporting the mode.
We'll have the opportunity to see this when adding the last mcbin
interface.
Thanks!
Antoine
--
Antoine T?nart, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
Hi Russell,
On Tue, Jan 09, 2018 at 02:44:48PM +0000, Russell King - ARM Linux wrote:
> On Tue, Jan 09, 2018 at 09:59:45AM +0100, Antoine Tenart wrote:
> > This patch adds the 2500Base-X PHY mode support in the Marvell PPv2
> > driver. 2500Base-X is quite close to 1000Base-X and SGMII modes and uses
> > nearly the same code path.
>
> Sorry, also...
Comments always welcomed :)
> > @@ -4668,6 +4692,10 @@ static void mvpp2_port_mii_gmac_configure_mode(struct mvpp2_port *port)
> > */
> > val |= MVPP2_GMAC_CONFIG_GMII_SPEED |
> > MVPP2_GMAC_CONFIG_FULL_DUPLEX;
> > + else if (port->phy_interface == PHY_INTERFACE_MODE_2500BASEX)
> > + val |= MVPP2_GMAC_CONFIG_GMII_SPEED |
> > + MVPP2_GMAC_CONFIG_MII_SPEED |
> > + MVPP2_GMAC_CONFIG_FULL_DUPLEX;
>
> I think you'll find you don't need to set MII_SPEED here, since
> MII_SPEED selects between 10 and 100, GMII_SPEED always takes
> precidence selecting 1000, and 2500 is done by the comphy
> increasing the clocks by 2.5x.
I just had a look at the datasheet, and as you say it seems GMII_SPEED
takes over MII_SPEED. I'll see if there is a corner case here or if
selecting MII_SPEED doesn't make sense, and update accordingly.
Thanks!
Antoine
--
Antoine T?nart, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
Hi Russell,
On Tue, Jan 09, 2018 at 04:17:35PM +0100, Antoine Tenart wrote:
> On Tue, Jan 09, 2018 at 02:44:48PM +0000, Russell King - ARM Linux wrote:
> > On Tue, Jan 09, 2018 at 09:59:45AM +0100, Antoine Tenart wrote:
> > > val |= MVPP2_GMAC_CONFIG_GMII_SPEED |
> > > MVPP2_GMAC_CONFIG_FULL_DUPLEX;
> > > + else if (port->phy_interface == PHY_INTERFACE_MODE_2500BASEX)
> > > + val |= MVPP2_GMAC_CONFIG_GMII_SPEED |
> > > + MVPP2_GMAC_CONFIG_MII_SPEED |
> > > + MVPP2_GMAC_CONFIG_FULL_DUPLEX;
> >
> > I think you'll find you don't need to set MII_SPEED here, since
> > MII_SPEED selects between 10 and 100, GMII_SPEED always takes
> > precidence selecting 1000, and 2500 is done by the comphy
> > increasing the clocks by 2.5x.
>
> I just had a look at the datasheet, and as you say it seems GMII_SPEED
> takes over MII_SPEED. I'll see if there is a corner case here or if
> selecting MII_SPEED doesn't make sense, and update accordingly.
I just checked, this can be removed for this mode. I'll update the
patch.
Thanks!
Antoine
--
Antoine T?nart, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com